UCS-240 with SAS 12GB Raid Control ( WANT RAID 5)

[Imran Irshad]

Dear UCS Experts,

Recently We purchased Cisco UCS-240 M4 Server and installed 3X600GB SAS HDD with Cisco 12G SAS Modular RAID Controller.

I Could not find RAID 5 while Configuring RAID Controller in Cisco Storage Management Console.  I found Only RAID 0, 1 & 10 in settings,

some information i found below,

"""Cisco 12G SAS Modular RAID Controller You can choose the Cisco 12G SAS RAID controller, which plugs into a dedicated RAID controller card slot. This RAID controller supports RAID 0, 1, 10 (without the FBWC option) and supports RAID 0, 1, 10, 5, 6, 50, 60 (with the FBWC option)""

Could you please help me  What is with FBWC?  what should i need to do to get  RAID 5 Option availability in Settings ????

[Philip D'Ath]

I think it stands for "Flash Back Write Cache".  You can buy the FBWC and install it.

Usually you would order one of these options (depending on how much cache you want):

http://www.cisco.com/c/dam/en/us/products/collateral/servers-unified-computing/ucs-c-series-rack-servers/c240m4-sff-spec-sheet.pdf

UCSC-MRAID12G-1GB

UCSC-MRAID12G-2GB

UCSC-MRAID12G-4GB